baber/WOPTO huggingface dataset:
Patent GB-788505-A (GB)
Title: Improvements in or relating to devices for sealing or stopping defective boiler tubes
IPC: F28F11/04
Filed: 1956-08-15
Abstract: 788,505. Stopping boiler tubes. SMITH, W. G. Aug. 15, 1956, No. 24902/56. Class 99(1). A device for sealing a defective boiler tube 12 comprises a tubular member 19 which is passed through it and extends beyond its ends, means shown as cones 14, 18, attached to -a rod 13 being forced into the member 19 the edges of which are expanded into sealing engagement with the ends of the defective tube. The rod 13, carrying the conical part 14 which is screwed on and riveted over at 15, is passed through the tube until the part 14 is clear of the rear end. The tubular member 19, made from copper or wrought iron, is then inserted so that its ends project from the front and rear ends of the defective tube and the conical part 18 is slid over the front threaded portion of the rod 13 and is tightened by a nut 17 until the ends of the member 19 are deformed into sealing engagement. Further tightening may be effected while blows are being struck on a wing nut 21.
Patent GB-533380-A (GB)
Title: Improvements in or relating to cable terminations and joints
IPC: H02G15/105
Filed: 1939-08-30
Abstract: 533,380. Cable joints; junction boxes. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and SHUTTLEWORTH, H. Aug. 30, 1939, No. 24926. [Classes 36 and 38 (i)] A joint for a cable end includes a tubular member extending inward from the wall &c. through which the cable passes, fitting over the cable sheath and a flexible cover or sleeve sealing the external surfaces of the inwardly projecting parts of the tubular member and the cable sheath. In the example shown a junction box 1 comprises a casing welded to one end plate 3 which has an aperture for a gland 25 with inwardly projecting tube through which the cable with sheath 15 extends. A flexible sealing sleeve 16 is bound over the ends of tube and sheath. At the other end a plate 2 is bolted to a ring in the casing and itself bears a tubular member 14 extending both inward and outward the inner and being sealed by a sleeve 16. The sleeves may comprise rubber, or insulating tape. Outer sleeves &c. 24 may be applied additionally. Clips 22, 23 serve to secure external wire armouring. In a modification the inner tubular member extends inwards from the outer end of an external element. Specification 481,593, [Group VIII], is referred to.
Patent GB-1010433-A (GB)
Title: Improvements in or relating to trolleys, bogies and the like for facilitating the handling and movement of articles and particularly heavy articles
Inventor: JOHNSTONE GEORGE BERNARD
IPC: B62B3/06
Filed: 1962-06-29
Abstract: 1,010,433. Securing trolleys on vehicles. JALODA TRANSPORT EQUIPMENT Ltd. June 27, 1963 [June 29, 1962], No. 24975/62. Heading B8E. [Also in Division B7] A retractable stop for a trolley of the type described in Specification 992,937, comprises a spring steel hairpinshaped member 15 having an end 17 which passes through a hole 19 in the base of the trolley track 10 which actuates a brake arm on a trolley passing thereover and brings the trolley to rest. The member is secured in position on a cross-member 11 disposed below the track by a welded-on block 18 and is retracted by means of a bar 21, which may be a handle provided for manipulating the trolley. This bar is passed through hole 20 in the crossmember 11 and engages a U-shaped part 22 of the member. An upward levering movement of the bar depresses the stop.
Patent GB-164997-A (GB)
Title: Improvements in ball castors
IPC: B60B33/08
Filed: 1920-08-31
Abstract: 164,997. Bennett, A. J. Aug. 31, 1920. Castors. - A castor comprises a ball A mounted in ball races B, B<1> provided in interchangeable rings C, C<1> which are secured to a base plate D by bolts E. Packing D<1> is introduced between the rings to allow adjustment.
Patent GB-892583-A (GB)
Title: Educational device
IPC: G09B23/18
Filed: 1958-08-05
Abstract: 892,583. Educational devices. CROW, L. R. Aug. 5, 1958 [Aug. 12, 1957], No. 25080/58. Class 146(2) [Also in Group XXXV] An educational device for teaching electricity and magnetism comprises essentially a U core 1, having legs 2 initially free to receive coils such as 12, and a cross-bar 4 with means for detachably securing it to the core. The core has a recess 14 forming an air gap and a flanged block 15 which can be secured therein as by a screw 16. As described the free ends of the legs 2 have dowels 10 to enter sockets 11 in the bar 4 which is secured in position by U-shaped clips 5 having holes 6 to engage pins 7 passed through holes 8 in the legs 2. The bar 4 may have an air gap recess 17 which can be filled by a block 18 and the recesses 14, 17 may be provided on the opposite sides of their respective limbs so that two assemblies may be interlocked and joined together in a crossed relationship. Various different ways of assembling and securing the basic units together are illustrated.
Patent GB-343940-A (GB)
Title: Improved process of vulcanising rubber
IPC: C08K5/3492
Filed: 1929-08-17
Abstract: Cyanuric acid is added to rubber as an antiager.  In an example, the amount of cyanuric acid is one per cent of the rubber.
Patent GB-755484-A (GB)
Title: Improved power boost for an automotive vehicle steering mechanism
IPC: B62D6/10
Filed: 1954-08-31
Abstract: 755,484. Power-assisted steering gear. LEAR, Inc. Aug. 31, 1954 [Aug. 31;-1953], No. 25203/54. Class 40(1) [Also in Group XXXI] In a power-assisted steering gear for road-vehicles, steering pressure acts to reduce one resistance 55, Fig. 4, and increase another to control the progressive actuation of a pair of clutches 77a, 78a coupling a constantly running motor 75 to an arm 72 at one end of the drag link 29, Fig. 1, or to the steering rod, Fig. 5 (not shown). In the case of excessive current in either clutch winding, relay 84 pulls up and locks and disconnects both. In the Fig. 1 arrangement, the adjustable resistors 56 are situated as shown in Fig. 3 in the drag link and are acted on by the usual coupling members 32...34. They take the form of carbon piles enclosed by a diaphragm 58 to make them grease-tight and acted on via a spring 59. Alternatively, a single pre-stressed pile may be used. In the Fig. 5 modification, the steering rod is in two parts 102, 114 coupled mechanically, as far as rotary motion is concerned by springs 136 arranged between pairs of posts 107, 116, carried by the respective parts. Carbon piles 127 also arranged between the posts respond electrically to any relative motion and. control the clutches appropriately.
Patent GB-729198-A (GB)
Title: Improvements in independent wheel suspensions in power-driven vehicles
IPC: B60G11/14
Filed: 1953-09-14
Abstract: 729,198. Spring suspensions. PORSCHE; F. Sept. 14, 1953 [Oct. 21, 1952], No. 25288/63. Class 108 (2). In an independent wheel suspension in which steered wheels are guided by a link parallelogram swinging in the direction of travel and sprung by helical springs, the axis of the spring at each side of the vehicle intersects the vertical line passing through the middle of the wheel at a' point lying within a range of 50 per cent of an amount corresponding to the distance apart of the links at both sides of the intersecting line of the horizontal plane passing through the end of the lower longitudinal link. In the arrangement shown, each wheel 1 is steerable about a swivel pin 3, the upper end of which forms a bearing for a ball-ended pin 7 provided at the free end of an upper swinging link 4. A pin 8 for a lower link 5 engages within a casing 12 connected to the pin 3 by a clamp bolt 13. Both bearings include a cup member 11 and 14 respectively. The upper end of pin 3 is made as a bracket 10 which supports a coil suspension spring 15 and a shock-absorber 22, the position of the spring being such that the axis thereof intersects a line 29 through the wheel at a point 30 lying within a range of 50 per cent of the amount corresponding to a distance apart a of the links 4, 5 at both sides of an intersecting line b-b through the end of the link 5. A thrust bearing 31 is provided between the bracket 10 and a swivel 2 carrying the. wheel 1. In a modification, Fig. 3 (not shown), the pins 7, 8.are each replaced by a rubber joint comprising a pair of rubber sleeves compressed on to a pin and bearing directly in an opening at each end of the swivel pin. In another modification the swivel pin may be dispensed with.
Patent GB-189426-A (GB)
Title: Improvements in or relating to knitted articles with bulged portions or pouches
IPC: D04B9/46
Filed: 1922-09-19
Abstract: 189,426. Esche, M. S. [Firm of]. Nov. 25, 1921, [Convention date]. Stockings. - The fashioned parts of hosiery, such as the heels of stockines &c., are composed of rows of stitches which increase progressively in length from the beginning of the fashioning to about the mid point and then progressively decrease. The operation is conducted, by throwing needles in or out of action as required, the needles not required to knit retaining their loops. At each widening movement needles which were previousfty inactive and are brought into action cast off previously retained loops. The Figure shows the heel thus obtained.
Patent GB-1220363-A (GB)
Title: Improvements in condensed vapor phase photoetching of surfaces
IPC: C03C15/00
Filed: 1968-05-28
Abstract: 1,220,363. Etching. GENERAL ELECTRIC CO. 28 May, 1968 [29 May, 1967], No. 25425/68. Heading B6J. A silicon dioxide surface is etched by exposing it to the vapour of 1 - fluoro - propan - 2 - ol or fluorobenzene, cooling it to below the dew point of the vapour to form a thin liquid film thereon and exposing at least a portion of the interface between the film and the surface to activating radiation. As shown the surface 16 of SiO 2 , to be etched forms one wall of chamber 10 containing a reservoir 11 of etchant liquid 12. The chamber is maintained at a temperature such that it is filled with a vapour of the etchant which condenses on surface 16 cooled by water jacket 17. Activating radiation is supplied through window 20.
Patent GB-465708-A (GB)
Title: Improvements in the manufacture of vanillin from waste sulphite pulp liquor and related substances containing lignin sulphonic acids
IPC: C07C47/58
Filed: 1936-09-18
Abstract: Vanillin is recovered from sulphite-cellulose liquor or like material containing lignin sulphonic acid by heating the material with caustic alkali, treating the mixture with carbon dioxide, and extracting vanillin from the product with an organic solvent, e.g. benzene or ethylene chloride.  The treatment with caustic alkali may be effected at the boiling point of the material at atmospheric pressure or at about 125--160 DEG  C., at a raised pressure ; the alkali may be caustic soda or potash or barium hydroxide.  The sulphite-cellulose liquor may first be concentrated.  The liquor remaining after the extraction of the vanillin may be treated to remove insoluble calcium salts and (if caustic soda has been used) may then be dried and calcined to recover sodium carbonate, which is causticized for use again in the process.  Examples illustrating suitable conditions of treatment are given.
Patent GB-1317273-A (GB)
Title: Electrophotography
IPC: G03G15/01
Filed: 1970-05-27
Abstract: 1317273 Electro-photographic colour copier CANON K K 27 May 1970 [31 May 1969(2)] 25569/70 Heading G2H In a multi-colour electro-photographic copier, colour images of an original are simultaneously projected to different locations on a plane or cylindrical photo-sensitive surface by means of beam splitters and colour filters, there being provided charging, developing and fixing means adjacent each image location past which the photo-sensitive surface is moved, and marking and detection means are associated with the photosensitive surface for correct positioning at each exposure location. As shown three colour images are formed of the original 10 at locations P 1 , P 2 , P 3  by means of pellicle beam splitters 2, 3, reflecting prisms 4, 5, 6 and colour filters 11, 12, 13. Charging means 20, 21, 22, developing means 23, 24, 25 and fixing means 26, 27, 28 are provided at each exposure position past which a photosensitive sheet 16 on a carriage 15 is moved. Markings 29, Fig. 2 when sensed by detectors 30 halt and lock carriage 15 at the positions P 1 , P 2  and P 3  for exposure by means of electromagnet 36 and clamping means 37. The marking and detection means may be mechanical (hole and pin), magnetic or optical, and markings may be formed xerographically in non-image areas of the photosensitive member 10, Figs. 4 and 5 (not shown). The photo-sensitive member 10 may be in the form of an endless belt or drum and the images formed thereon may be transferred, Fig.3. Alternatively the member 10 may be in the form of a rotatable disc. In further embodiments, Figs. 8 and 9 (not shown) the photo-sensitive member 10 comprises a transparent outer layer, a photo-conductive layer and an insulative layer and means are provided at each exposure position for carrying out the PIP process.
Patent GB-382705-A (GB)
Title: Improvements in grinding mills
IPC: B02C2/10
Filed: 1931-09-12
Abstract: 382,705. Conical mills. HAMBLIN W. G., 16, Overndale Road, Fishponds, Bristol. Sept. 12, 1931, No. 25594. [Class 59.] In a grinding mill for paints &c. one of the grinding members is adapted to be moved into grinding position by means of a spring 17 which bears on a foot 16 for the driving shaft 7, a sleeve 25 being mounted on the shaft and bearing on a footplate or abutment 15 on the shaft and on an adjustable abutment or lever 21. As shown in the Figure, the rotary grinding disc 6 is adapted to co-operate with a conical, stationary member 4 to which a hopper 5 is attached. The disc 6 is removably attached to the shaft 7 and is rotated by a worm 11 and worm wheel 12. The worm wheel 11 is slidably mounted on the shaft and the latter is provided with a footstep bearing 15 retained between sleeves 25, 16, slidable in a housing 20. The spring 17 is forced against the bottom sleeve 16 by a screwed nut 19 and the upward thrust is taken by the lever 21 bearing on a fixed bar 22, which may be adjustable in height, and against the top sleeve 25. A screwed rod 24 engages in a nut 23 at the end of the lever 21 and controls the separation of the discs. The spring 17 may be compressed by a screwed rod. A scraper, which delivers the ground material from the disc 6 to a conical trough 3 may be vertically adjustable to follow the movement of the disc. Specification 373,617 is referred to.
Patent GB-256058-A (GB)
Abstract: 256,058. Cunningham, D. Aug. 13, 1925. Moulding kerbs in situ.-Kerb shuttering is provided with upright supports 3 secured to it. each support carrying a rod 4 which is pointed at one end to engage recesses in cross-ties 1 and provided with a loop at its other end with whi.ch is engaged a hooked end of an upper cross-tie, so that the shutters are positioned against both inward and outward movement during the casting. The shutters and uprights are also slotted to engage the lower cross-ties. Reinforcement 11, 11<a>, and 12 may be provided for the kerb.
Patent GB-836929-A (GB)
Title: Mixing taps
Inventor: NORWOOD HAROLD
IPC: F16K31/58
Filed: 1957-08-14
Abstract: 836,929. Supply fittings. SPERRYN & CO. Ltd. June 25, 1958 [Aug. 14, 1957], No. 25626/57. Class 26. In a mixing tap for two fluids such as hot and cold water a delivery tube mounted to swivel in a body 10 comprises an outer tube 27 in communication with a passage 17 to which one fluid is supplied through a tap 11 and two or more smaller tubes 28 within the tube 27 communicating with a passage 18 to which the other fluid is supplied through a tap 12. The inner ends of the tubes 28 are mounted in a coupling member, rotatably engaging a wall 16 in the body 10 (separating the passages leading from the taps), and comprising two discs 22, 23, the tube 27 terminating in the disc 22 and the tubes 28 extending into the disc 23, the intervening space communicating with the passage 17 and the tubes 28 with the passage 18. In the form shown the tubes 28 are each of an external diameter equal to or slightly less than half the internal diameter of the tube 27 and the discs 22, 23 have grooves for 0 rings 25 to form seals with the wall 16, the disc 23 being seated on a shoulder 19 in the wall 16 and held against it through a flanged ring 26 screwed on to an extension 20. The tubes may be for example circular or elliptical. The metal of the inner tubes may be of lighter gauge than the outer tube.
Patent GB-756411-A (GB)
Title: Improvements relating to belt or band conveyors
IPC: B65G39/16
Filed: 1954-09-03
Abstract: 756,411. Idlers for belt conveyers. WOODHEAD & SONS, Ltd., J. Sept. 3, 1954 [Feb. 6, 1954], No. 25645/54. Class 78 (1). In a conveyer in which the belt is supported by idlers each comprising a helical spring, the idlers are rotatably supported with their longitudinal axes inclined to the line of travel of the belt so that the parts of the convolutions of the springs which are in contact at any time with the belt are directly in line with or substantially parallel to the line of travel of the belt. Fig. 2 shows the application to a belt which is supported along its upper run by a number of rollers 1 and along its return run by rollers 2, the rollers 2 normally being arranged directly below the rollers 1 and not displaced relatively to these rollers as shown. The end convolutions 6, 10 of the springs of these rollers are secured to plates 7, 9 provided with spindles 8, 11 rotatably supported in casings 12, 13 provided with trunnions 14, 15. The trunnions 14 are supported in recesses in supports 17 on brackets 18 secured to the conveyer frame 3, whilst the trunnions 15 are similarly supported in brackets (not shown) on the frame 3. Specifications 756,409 and 756,410 are referred to.
Patent GB-893202-A (GB)
Title: Continuous crumpet production machine
IPC: A21B5/02
Filed: 1959-07-27
Abstract: 893,202. Baking crumpets. NOEL, E. M. July 27, 1959, No. 25671/59. Class 28 (1). In an automatic crumpet-baking machine, batter is deposited from a measuring device 110 into ring moulds 43 on endless conveyer chains 26, the moulds resting, while being carried through the machine, on heated plates 60 on a synchronously-driven conveyer. The ring moulds are supported by pairs of metal straps 44 attached at each end to a bearing 45 slidable on a rod 46 and carrying a roller 72 which is arranged to be lifted by a cam surface 73, after the moulds have passed the cooking position, into the path of members 83 on another synchronously-driven endless conveyer 80 whereby the crumpets are pushed out of the moulds and remain resting on the plates 60 until removed by scrapers 140 when the plates commence their return journey during which they are cleaned by scrapers and rotary brushes. After the release of the crumpets, the moulds return to the starting-position past a grease-applying spray.
Patent GB-1185596-A (GB)
Title: Apparatus for Supplying Pressure Medium for the Control of Automatic Change-Speed Gearing
IPC: F04B49/12
Filed: 1968-05-29
Abstract: 1,185,596. Change speed control. DAIMLERBENZ A.G. 29 May, 1968 [2 June, 1967], No. 25733/68. Heading F2D. [Also in Division F1] In apparatus for supplying the control pressure fluid for vehicle automatic changespeed gearing in which an engine-driven primary pump 11 and an output shaft-driven secondary pump 12 both deliver through non- return valves 15, 16 into a common circuit 10, the secondary pump is operatively disconnectible from the shaft in response to build up of pressure by the primary pump. The secondary pump piston 23 is moved by an eccentric 28 acting on a roller 25 connected to a tubular piston-rod 22, passing through a plug 20. A spring 27 which urges the piston/roller assembly against the eccentric surrounds a pervious metal cage 42 containing a spring- loaded non-return valve disc 40. The space 29 behind piston 23 is connected via a valve 32 to the pressure side of primary pump 11. Whilst the primary pump 11 is operative the ball 32 is moved to the end opposite the position shown and pressure is admitted to space 29. Piston 23 is moved against spring 27 to disengage roller 25 from eccentric 28. If the engine stops or pump 11 fails there is no pressure build-up in space 29 and the secondary pump 16 pumps fluid from the reservoir via non-return valves 40, 16 to the circuit. A small flow passes via non- return valve 34, piston-rod 22 and bore 36 to lubricate the roller 25. In modifications the valve cage is omitted and the valve spring abutted directly against the piston so the suction valve 40 is embraced by a helical spring which also acts as the piston return spring.
Patent GB-828023-A (GB)
Title: Improvements in semiconductor devices and methods of making same
IPC: C30B31/00
Filed: 1957-08-15
Abstract: 828,023. Semi-conductor elements. GENERAL ELECTRIC CO. Aug. 15, 1957 [Aug. 16, 1956], No. 25783/57. Class 37. A junction transistor is produced by melting back and refreezing a portion of a semi-conductor body containing an impurity, so as to form a region of low impurity concentration at the solid liquid interface, and then heating to diffuse an impurity characteristic of the opposite type so that it predominates in this region. The body may initially contain both the donor and acceptor impurities. Fig. 2 shows the resultant impurity concentration along a bar of Si using Sb and Ga as impurities. Originally (Fig. 2 (A)) the Sb concentration exceeds the Ga, so that the bar is N-type throughout. After melt-back, the segregation coefficients being less than unity, the concentration of both Sb and Ga is reduced near the interface but Sb remains predominant, while the concentration of both increase in the recrystallized portion away from the interface. The rod is now heated to about 1200‹ C. for two hours which causes the Ga (which diffuses faster than Sb in Si) to become predominant in the region adjacent the interface, as shown in Fig. 2 (C), to provide an NPN structure. Ge may be used instead of Si and Sb.In; Sb.B; Sb.A1; Ga.As; P.A1 ; P.Ga; As.B; As.In; As.A1; and In.Pare specified as alternative impurity combinations. By choosing impurities such as As and B in Si and freezing slowly, and then quickly after the melting back, it is possible to arrange for the concentrations in the first recrystallized portion to be substantially equal, as shown in Fig. 3B. Subsequent diffusion of the B then provides an NPIN structure, as shown in Figs. 3C and 3D. Further embodiments are described using three impurities, such as In and Ga as acceptors and Sb as the donor, in Ge. In these cases, the In originally predominates, while Ga predominates after melt back and recrystallization. Subsequent diffusion of the Sb converts the interface region to opposite type conductivity as in the previous examples to provide a PNP structure. The use of the two acceptors enables separate control of the final resistivity of the two P regions which serve as emitter and collector, to be established. Other combinations of impurities given for use with Ge are In, Ga, As and In, Ga, P, and for use with Si are Sb, As, Ga; P, Sb, Ga; As, Sb, Al and P, Sb, Al. In a similar manner, silicon NPIN structures can be produced by using Sb, Ga, B or Sb, Ga, An. In a further embodiment (Fig. 7), a Ge pellet comprising only one impurity, Sb, is melted back to provide a concentration as shown in Fig. 7 (A). The pellet is then coated with Cu and heated at 800‹ C. for two hours to diffuse the Cu throughout the whole pellet, as shown in Fig. 7B, to provide an NPN structure. As and Ga may alternatively be used in Ge, or Al and As in Si for the same purpose.
Patent GB-322529-A (GB)
Title: Improvements in and relating to fencing and wall structures
IPC: E04B2/10
Filed: 1928-09-07
Abstract: 322,529. Cook, W. Sept. 7, 1928. Reinforced slabs for walls,- Fences and like walls are formed of reinforced concrete slabs placed vertically side by side, Fig. 1, with the bars 7 projecting at both ends and bent over at the top into grooves 8 of adjacent slabs, and grouted to lock the slabs together; or the bars may be twisted together as shown in Fig. 6. The sides of the slabs are grooved or tongued-andgrooved, and jointed with cement or bituminous material.